Fix for bug 103972: Provide warning dialog for empty help menu url (r=smeredith)

cck/cckwiz/iniFiles/Branding_page1.ini

@@ -29,7 +29,7 @@ Caption=2nd level node
 Help=Online;%Root%CCKHelp\brandingpage1.html
 
 [Navigation Controls]
-onNext=
+onNext=IsFieldEmpty(%HelpMenuCommandName%,%HelpMenuCommandURL%,Enter the Help Menu Item URL)
 Help=Branding1_Help.ini
 
 
@@ -95,7 +95,7 @@ Name=LargeStillPath
 Value=
 Start_x=11
 Start_y=125
-Width=200
+Width=200
 Height=15
 
 [Widget 845]